@inproceedings{bbdfv-tsp-07
, author = {Sergey Bereg and Prosenjit Bose and Adrian Dumitrescu and Ferran
Hurtado and Pavel Valtr}
, title = {Traversing a Set of Points with a Minimum Number of Turns}
, booktitle = {Proc. 23th Annu. ACM Sympos. Comput. Geom.}
, year = {2007}
, pages = {46--55}
}